Image Brightness Adjuster
Adjust image brightness from -100 to +100. Pure Canvas API processing, 100% private, no uploads.
About Image Brightness Adjuster
Adjust image brightness from -100 to +100. Pure Canvas API processing, 100% private, no uploads. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
Are my images uploaded?
No. Brightness adjustment runs locally via the Canvas API. Your images never leave your device.
What extras does this tool have?
Extras: (1) -100 to +100 range, (2) live preview, (3) PNG/JPEG/WebP output, (4) quality slider, (5) accessible labels, (6) no upload, (7) fast pixel processing, (8) keyboard-friendly, (9) drag-and-drop, (10) one-click apply, (11) lightweight, (12) preserves alpha, (13) clamped output.
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